See the complete MLB Dream Bracket rosters

A collection of current stars and legends are set to square off in the ultimate competition for baseball supremacy -- the MLB Dream Bracket presented by DraftKings, a best-of-seven simulation featuring all-time teams for each of the 30 Major League franchises, as well as teams consisting of standouts from the

A collection of current stars and legends are set to square off in the ultimate competition for baseball supremacy -- the MLB Dream Bracket presented by DraftKings, a best-of-seven simulation featuring all-time teams for each of the 30 Major League franchises, as well as teams consisting of standouts from the Negro Leagues and 25-and-under stars from today's game.

Want to find out which version of Nolan Ryan (Astros, Angels, Rangers) is best? The MLB Dream Bracket includes all three. Babe Ruth the pitcher vs. Babe Ruth the hitter? It's possible. And with both Vladimir Guerrero and Vladimir Guerrero Jr. in action, there's a chance father and son could collide.

Fans can register on the DraftKings mobile app to compete in contests based on the simulations, which will be produced by Out of the Park Sports and will be available for live streaming on MLB Network’s Twitch channel.

The first round will feature 16 matchups being played Monday and Tuesday, with the final round set to be played across two days starting Monday, May 4.

The 32-team bracket is split by league with teams seeded hierarchically based on World Series titles won, pennants won, postseason appearances and regular-season winning percentage. The Negro League Stars and 25 & Under Stars are No. 8 seeds in the American League and National League, respectively.

Here are the full 26-man rosters (15 hitters, 11 pitchers) for all 32 teams, with balance and depth in mind. (Teams are listed by league, in order of seeding.)